Wow, is that how you have concluded it? So how about other seasons where Spanish teams dominated all of Europe beating all teams across all the leagues that came their way? Have you forgotten about that so easily? PSG won the Champions League and beat EPL teams before getting to the finals. They beat Manchester City in the group stages, eliminated Liverpool in Round 16, eliminated Aston Villa in Quarter finals, eliminated Arsenal in the Semi finals. What will you then say about this?
Yep, it's incorrect to conclude the whole league when he's just cherry pick one team.
PSG proven many times they beat top EPL teams lately, Chelsea was just lucky in that match. Fortunately Chelsea qualified for Champions League, we will see their performance among all top teams. I still favor PSG and Barcelona even Chelsea won Club World Cup.
Oh, we don't have to think about Champions League, in EPL itself, I don't think Chelsea will become a champion in the upcoming season.